<template>
	<view class="my-settle-container">
		<!-- 全选 -->
		<label class="radio" @click="changeAllState">
			<radio color="#F21010" :checked="isFullCheck" /><text>全选</text>
		</label>
		<!-- 合计 -->
		<view class="amount-box">
			合计：<text class="amount">￥{{checkedGoodsAmount}}</text>
		</view>
		<!-- 结算按钮 -->
		<view class="btn-settle" @click="settlement">
			结算({{checkedCount}})
		</view>
	</view>
</template>

<script>
	import {
		mapGetters,
		mapMutations,
		mapState
	} from 'vuex'
	export default {
		name: "my-settle",
		data() {
			return {
				seconds: 3,
				//定时器的id
				timer:null
			};
		},
		computed: {
			...mapGetters('cart', ['checkedCount', 'total', 'checkedGoodsAmount']),
			...mapGetters('user', ['addstr']),
			...mapState('user', ['token']), 
			...mapState('cart',['cart']),
			isFullCheck() {
				return this.total === this.checkedCount
			}
		},
		methods: {
			...mapMutations('cart', ['updateAllGoodsState']),
			...mapMutations('user', ['updateRedirectInfo']),
			changeAllState() {
				this.updateAllGoodsState(!this.isFullCheck)
			},
			//用户点击了结算按钮 
			settlement() {
				if (!this.checkedCount) return uni.$showMsg('请选择要结算的商品！')

				if (!this.addstr) return uni.$showMsg('请选择收货地址！')

				// 推荐使用这种方式判空（覆盖 null, undefined, 空字符串）
				if (!this.token) return this.delayNavigate()
				
				// 这里添加实际的结算逻辑
				this.payOrder()
				
			},
			//延时导航到my页面
			delayNavigate() {
				this.seconds = 3
				this.showTips(this.seconds)
				this.timer = setInterval(() => {
					this.seconds--
					
					if(this.seconds <= 0){
						clearInterval(this.timer)
						
						uni.switchTab({
							url:'/pages/my/my',
							success:() => {
								this.updateRedirectInfo({
									openType: 'switchTab',
									from : '/pages/cart/cart'
								})
							}
						})
						
						return
					}
					this.showTips(this.seconds)
				}, 1000)
			},
			//展示倒计时的提示消息
			showTips(n) {
				uni.showToast({
					icon: 'none',
					title: `请登录后再结算！${n}秒后自动跳转到登录页面！`, // 使用反引号
					mask: true,
					duration: 1000
				});
			},
			async payOrder(){
				// 1. 创建订单
				// 1.1 组织订单的信息对象
				const orderInfo = {
					// order_price : this.checkedGoodsAmount,
					order_price: 0.01,
					consignee_addr: this.addstr,
					foods:this.cart.filter(x => x.goods_state).map(x => ({
						goods_id : x.goods_id,
						goods_number: x.goods_count,
						goods_price:x.goods_price
					}))
				}
				// 1.2 发起请求创建订单
				const {data : res} = await uni.$http.post('/api/public/v1/my/orders/create',orderInfo)
				if(res.meta.status !== 200) return uni.$showMsg('创建订单失败！')
				// 1.3 得到服务器响应的“订单编号”
				const orderNumber = res.message.order_number
				console.log(orderNumber)
				
				//2.订单预支付
				// 2.1发起请求获取订单的支付信息
				const { data: res2 } = await uni.$http.post('/api/public/v1/my/orders/req_unifiedorder',{order_number : orderNumber})
				
				// 2.2预付订单生成失败
				if(res2.meta.status !== 200) return uni.$showMsg('预付订单生成失败！')
				
				// 2.3得到订单支付相关的必要参数
				const payInfo = res2.message.pay
				
				console.log(payInfo);
				
				//3.发起微信支付
				//3.1调用uni.requestPayment()发起微信支付
				const {data: succ} = await uni.requestPayment(payInfo)
				//3.2未完成支付
				if(err) return uni.$showMsg('订单未支付！')
				//3.3完成了支付进一步查询支付的结果
				const {data : res3} = await uni.$http.post('/api/public/v1/my/orders/chkOrder',{order_number : orderNumber})
				//3.4检测到订单未支付
				if(res3.meta.status !==200) return uni.$showMsg('订单未支付！')
				//3.5检测到订单支付完成
				uni.showToast({
					title:'支付完成！',
					icon:'success'
				})
				
			}

		}
	}
</script>

<style lang="scss">
	.my-settle-container {
		position: fixed;
		bottom: 0;
		left: 0;
		width: 100%;
		height: 50px;
		background-color: white;
		display: flex;
		justify-content: space-between;
		align-items: center;
		font-size: 14px;
		padding-left: 5px;

		.radio {
			display: flex;
			align-items: center;
		}

		.amount-box {
			.amount {
				color: #F12010;
				font-weight: bold;
			}
		}

		.btn-settle {
			background-color: #F12010;
			height: 50px;
			color: white;
			line-height: 50px;
			padding: 0 10px;
			min-width: 100px;
			text-align: center;
		}
	}
</style>